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A hybrid type gas generator containing a metal charge

A gas generator, metal-filled technology, used in transportation and packaging, vehicle components, pedestrian/occupant safety arrangements, etc., which can solve the problems of generator cost price impact, increased size and weight, etc.

Inactive Publication Date: 2008-12-24
AUTOLIV DEV AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] But such a solution must have a significant impact on the cost price of the generator
[0012] Moreover, installing such a section on the generator increases its size and weight

Method used

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  • A hybrid type gas generator containing a metal charge
  • A hybrid type gas generator containing a metal charge
  • A hybrid type gas generator containing a metal charge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Figure 1 shows a generator suitable for implementing the described features of the invention.

[0033] The generator is a hybrid generator of generally conventional construction.

[0034] The generator 1 basically consists of a housing 2 with a gas tank 3 connected thereto.

[0035] The housing 2 is a hollow cylindrical metal body with a longitudinal axis X-X'.

[0036] The initiator 4 is arranged at the upstream end opening of the wall 20 of the housing 2 and is concentric with said axis XX'. Said initiator 4 is illustrated on the left side of the figure and is held in this position by suitable holding means.

[0037] The initiator is connected to the pyrotechnic fuel 5 in the combustion chamber C. In this embodiment, for example, the fuel consists of a propellant. The fuel is in granular form.

[0038] In different embodiments, the fuel can be in other forms, for example, it is formed of a block, preferably a ring block, and the rotation axis of the ring block fu...

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PUM

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Abstract

The present invention relates to a hybrid type gas generator for a motor vehicle safety device, the generator comprising at least: a combustion chamber (C) containing a pyrotechnic initiator (4) and pyrotechnic charge (5) for generating gas and including at least one oxidizing material, with combustion of the charge being triggered by said initiator (4); and a gas tank (3) that is closed towards the combustion chamber (C) by a capsule (8), the capsule being suitable for giving way during combustion of said charge (5) in order to release the gas from the tank (3) and exhaust it towards the outside, the generator being characterized by the fact that said combustion chamber (C) also contains a charge (9) of least one metal, said charge being distinct from the pyrotechnic charge (5).

Description

technical field [0001] The present invention relates to a hybrid gas generator for automobile safety devices. Background technique [0002] Typically, such generators include: [0003] a combustion chamber containing a pyrotechnic initiator and pyrotechnic fuel for generating gas and comprising at least one oxidizing material, the fuel being combusted by said initiator; and [0004] A gas tank sealed towards said combustion chamber by a sealing cover adapted to give access during combustion of said fuel in order to release gases from the gas tank and discharge them to the outside. [0005] Usually, there is a transfer and diffusion chamber between the combustion chamber and the gas tank. [0006] Gases produced by the combustion of the fuel pass through the transfer chamber to reach the sealing cover, which forms a barrier between the chamber and the gas tank. The sealing cap is generally a thin metal film. [0007] When the sealing cap gives access, the cold air in the ...

Claims

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Application Information

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IPC IPC(8): B60R21/272
CPCB60R21/272B60R21/264B60R21/26
Inventor 西里尔·布兰德龙洛朗·科斯特卡尔德卡特琳·吕凯卢多维克·拉热特
Owner AUTOLIV DEV AB
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